Polyurethane Acoustic Foam
Description

A general purpose acoustic foam with fire retardant additives that achieves Class 0 rating for surface spread of flame. The foam may be used for duct lining, machine coverings and ceiling panels.

Polyurethane Acoustic Foam is dark grey/ black in colour and is available with a range of facings, and with self-adhesive backing. It is CFC and HCFC free.

The foam can be adhered to a substrate, either using the self-adhesive backing, contact adhesive or pins and self-locking washers. Hangers and additional mechanical fixings are required for installation to ceilings or overhead surfaces, and for vertical installation of sheets that are 25 mm thick or more.

General information

Size

2 x 1 m sheet

1 m wide roll

Uniclass 2015

Pr_35_93_13_80 Sound attenuator infill unitsPrimary

CAWS

K40/285 Insulation

K40/55 Insulation

Specification data - Sound attenuator infill units

Product Reference

Polyurethane Acoustic Foam

Thickness

6 mm

12 mm

15 mm

20 mm

25 mm

30 mm

45 mm

50 mm

70 mm

Size

2 x 1 m sheet

1 m wide roll

Backing

None

Self-adhesive

Facing

None

Class 0 foil

Melinex

S-V1 polymeric coating

SVG1 vinyl coated glass cloth

Woven glass cloth

200 g/m².

Accessories

None

A8514

Brush applied adhesive.

Perforated-based pins with washers

Self-adhesive based pins with washers

Spraytack

Non-flammable synthetic rubber contact adhesive.

Standard product features

Density:

80–100 kg/m³.

Performance:

  • Indentation hardness: 156 N.
  • Elongation at break (minimum, unaged): 188%.
  • Operating temperature (minimum): -30ºC.
  • Operating temperature (maximum): continuous, 80ºC; intermittent, 110ºC.

Sound absorption:

Noise reduction coefficient, NRC (to BS 3638:1987):

  • 12 mm thick: 0.27.
  • 25 mm thick: 0.63.
  • 50 mm thick: 0.76.

Fire:

  • Surface spread of flame (BS 476-6 and 7): Class 0.
  • Char (BS 4735): 4.5 mm.
  • Flammability (FMVSS 302): Zero burn rate, self extinguishing.

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